Question

identifying materials by their densities
metal | density (g/cm³)
aluminum | 2.64
iron | 7.50
lead | 11.34
you have discovered a meteorite that seems to be metallic. its mass is 370 g, and you calculate the volume to be 50 cm³. based on the three values provided, which metal would most likely match the composition of the meteorite?
○ aluminum
○ iron
○ lead
○ none of these (density is less than 1.0)

Explanation:

Step1: Recall density formula

Density formula is $
ho = \frac{m}{V}$, where $m$ is mass and $V$ is volume.

Step2: Substitute values

Given $m = 370\ g$, $V = 50\ cm^3$. Substitute into formula: $
ho=\frac{370}{50}=7.4\ g/cm^3$.

Step3: Compare with table

Aluminum: $2.64$, Iron: $7.50$, Lead: $11.34$. $7.4$ is closest to Iron's density ($7.50$).

Answer:

Iron (the option: iron)